package org.example.java_gobang.api;

import org.example.java_gobang.model.User;
import org.example.java_gobang.model.UserMapper;

import org.springframework.util.StringUtils;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.bind.annotation.RestController;

import javax.annotation.Resource;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpSession;

@RestController
public class UserApi {

   @Resource
    private UserMapper userMapper;

    @PostMapping("/login")
    @ResponseBody
    public Object login(String username, String password, HttpServletRequest req){
        if (StringUtils.isEmpty(username) || StringUtils.isEmpty(password)) {
            System.out.println("用户名或密码不能为空");
            return new User();
        }
        User user =  userMapper.selectByName(username);
        System.out.println("[login]User: " + username);
        if(user == null || !user.getPassword().equals(password)){
            //登录失败
            System.out.println("登录失败");
            return new User();
        }
        HttpSession httpSession = req.getSession(true);
        httpSession.setAttribute("user",user);
        return user;

    }

    @PostMapping("/register")
    @ResponseBody
    public  Object register(String username, String password){
       try {
           User user = new User();
           user.setUsername(username);
           user.setPassword(password);
           userMapper.insert(user);
           return user;
       }catch (org.springframework.dao.DuplicateKeyException e){
           User user = new User();
           return user;
       }

    }

    @GetMapping("/getUserInfo")
    @ResponseBody
    public Object getUserInfo(HttpServletRequest req){
       try{
           HttpSession httpSession = req.getSession(false);
           User user = (User)httpSession.getAttribute("user");

           return userMapper.selectByName(user.getUsername());

       }catch (NullPointerException e){
           return new User();
       }


    }






}
